Vulnerability · Published May 26, 2025 · Assigned by VulDB
CVE-2025-5204Open Asset Import Library Assimp MDLMaterialLoader.cpp ParseSkinLump_3DGS_MDL7 out-of-bounds
Low 3.3
In plain English
A low-severity out-of-bounds read in Assimp from Open Asset Import Library. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities).
Official description
A vulnerability classified as problematic has been found in Open Asset Import Library Assimp 5.4.3. This affects the function MDLImporter::ParseSkinLump_3DGS_MDL7 of the file assimp/code/AssetLib/MDL/MDLMaterialLoader.cpp. The manipulation leads to out-of-bounds read. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used. The project decided to collect all Fuzzer bugs in a main-issue to address them in the future.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | assimp | no fix listed | DEBIAN-CVE-2025-5204 |
| Debian:13 | assimp | no fix listed | DEBIAN-CVE-2025-5204 |
| Debian:14 | assimp | no fix listed | DEBIAN-CVE-2025-5204 |
| Ubuntu:22.04:LTS | assimp | no fix listed | UBUNTU-CVE-2025-5204 |
| Ubuntu:24.04:LTS | assimp | no fix listed | UBUNTU-CVE-2025-5204 |
| Ubuntu:25.10 | assimp | no fix listed | UBUNTU-CVE-2025-5204 |
| Ubuntu:26.04:LTS | assimp | no fix listed | UBUNTU-CVE-2025-5204 |
| Ubuntu:26.10 | assimp | no fix listed | UBUNTU-CVE-2025-5204 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Open Asset Import Library | Assimp | 5.4.3 |
Weakness: CWE-125, CWE-119 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
References
- VDB-310293 | Open Asset Import Library Assimp MDLMaterialLoader.cpp ParseSkinLump_3DGS_MDL7 out-of-bounds vdb-entry, technical-description
- VDB-310293 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #578013 | Open Asset Import Library Assimp 5.4.3 Heap Out of Bounds Read third-party-advisory
- https://github.com/assimp/assimp/issues/6176 issue-tracking
- https://github.com/assimp/assimp/issues/6128 issue-tracking
- https://github.com/user-attachments/files/20209911/ParseSkinLump-reproducer.zip exploit